@Dreilide Oh, really? Melbourne st? Awesome man, we will have to go for a cruise. Are there many more in Adelaide? I have seen maybe 2. Yeah, I have been chasing the potential faulty sender/gauge/actual oil pressure issue for a while... had it tested with a mechanical gauge and it was apparently sweet. The recent advent of the complete lack of pressure at any time (with the laboured running) tells me now something has let go. I am actually really just looking forward to identifying/fixing the issue so that I can focus on the next parts of the build.